Belief in God is rational.
Everything has a cause. So unless there is a first cause, then you would have an infinite regress. And then nothing could exist. Therefore there must be a first cause. Therefore God, the first cause, exists. QED. (You could prove the first step a priori that everything has a cause by noting that nothing can come from nothing. This makes it a priori, not just an empirical observation).

Translate

12.12.16

Dr Kelley Ross on Divine command theory

A “Divine Command Theory” might have been mentioned somewhere, but it’s impossible that would be in a “positive way.” I don’t think I had even heard of such a theory until I found it in the Ethics textbook I used to use. So if I ever mentioned it, that was to caution students about it. Again, Nelson’s diagram at http://www.friesian.com/universl.htm#note-3 rules out anyone’s will as the source of morality.